We Treat ASH Trees

​Call 605-360-2511

Ash Borer Treatment TREATMENT PROCEDUREFor the EAB treatment that we use, the arborist drills small holes in the base of your ash tree and then injects an insecticide called Arbormactin until the tree has completely absorbed the appropriate amount.

TREATMENT EFFECTIVENESS In several intensive studies conducted by MSU and OSU researchers, a single injection of Arbormactin provided excellent control of Emerald Ash Borer for approximately two years, even under high pest presence. This means that you typically only need to treat your trees for EAB every two years.TREATMENT IMPACTBecause the EAB treatment is injected directly into the tree, there's no chemical spray to worry about. The tree absorbs the insecticide and spreads it throughout the trunk, branches and leaves where the beetles and larvae will ingest it and die. There's no exposure to you, your pets or the environment.

When to Treat your Ash Trees? Ash trees may be treated spring through fall and should be treated as soon as possible to prevent damage.An affected ash may still be treatable as long as less than 1/3 of the tree is damaged. However, treatment is not a magic bullet - visible recovery can take several years and treatment is not guaranteed to always save your tree. An ash tree may have additional damage beyond that caused by the EAB that makes it a poor candidate for treatment, even if less than 50% of the tree is affected.

This may sometimes be difficult to assess, however, because it is not possible to see all internal damage that has been done. That's why it's important to have a Licenced Arborist examine your ash tree(s) before making any decisions about treatment or removal.It's also why we recommend EAB treatment before your tree shows signs of infestation or damage. When an ash tree is infested, it can take years before damage becomes obvious when viewed from the ground, even though extensive damage is being done internally.Give us a call at 605-360-2511 to set up a consultation. Our arborists will be able to tell you whether or not it's advisable to treat your ash tree, and can evaluate whether or not deadwood pruning should also be done to remove safety hazards if your tree is already showing signs of Emerald Ash Borer damage.